Trust
Specialist Contributor
- Joined
- Jul 18, 2004
- Messages
- 1,127
- Reaction score
- 1,617
- Points
- 113
- Age
- 77
- My Satellite Setup
- 1.8 m CM at SMR 1224 + Elev. with 7 lnb changer Ku (lin - circ) - Ka (lin - circ) C (lin - circ)
- My Location
- Nijmegen Netherlands
Today I finished the new Fibo lnb changer for 6 different lnb positions .
The old one only could turn 180º and was controlled by a Omron PLC .
The new one is controlled by diseqc 1.2 via a Openbox F-500 , just made only 6 channels at different satellites .
I noticed that with diseqc 1.2 , the max rotation is 270º , maybe enough but I wanted more .
At the little SG E-motor is a gear with 11 teeth , I changed it for one with 16 teeth .
Therefor the motor must be displaced a mm .
That makes 392º rotation with the same amount of pulses possible and speeding it up.
By cutting-off a part of a second gear and fitting it together with the existing gear , I have a fully round gear .
Have to made two new cams (alu) , one for the end-switch and one for the zero switch .
To make shure there be no play in the future , loosen the bearing holder at one side just enough it could move with a little friction and attached a spring pushing the worm to the gear .
Made a new adapter plate to attach the lnb-holders for the , SL3K (2 positions lin / circ) the C lnb , the original Fibo feedhorn (Ku) the Inverto KAKUO and a spare place to test standard LNBF's .
Quite a job to put them all in te right place (focal dept / hight) , not optimal yet !
The feedarm with the equipment has a load of 5.5 kg .
Just for the movie I attached a Subreflector from a Fibo 90 to it .
The old one only could turn 180º and was controlled by a Omron PLC .
The new one is controlled by diseqc 1.2 via a Openbox F-500 , just made only 6 channels at different satellites .
I noticed that with diseqc 1.2 , the max rotation is 270º , maybe enough but I wanted more .
At the little SG E-motor is a gear with 11 teeth , I changed it for one with 16 teeth .
Therefor the motor must be displaced a mm .
That makes 392º rotation with the same amount of pulses possible and speeding it up.
By cutting-off a part of a second gear and fitting it together with the existing gear , I have a fully round gear .
Have to made two new cams (alu) , one for the end-switch and one for the zero switch .
To make shure there be no play in the future , loosen the bearing holder at one side just enough it could move with a little friction and attached a spring pushing the worm to the gear .
Made a new adapter plate to attach the lnb-holders for the , SL3K (2 positions lin / circ) the C lnb , the original Fibo feedhorn (Ku) the Inverto KAKUO and a spare place to test standard LNBF's .
Quite a job to put them all in te right place (focal dept / hight) , not optimal yet !
The feedarm with the equipment has a load of 5.5 kg .
Just for the movie I attached a Subreflector from a Fibo 90 to it .
Last edited: